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Finding the Fourth Proportional to 606,908.10, 910,726.65 and 251,885.10

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Solution

The fourth proportional to 606,908.10, 910,726.65 and 251,885.10 is: 377,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,908.10 : 910,726.65 = 251,885.10 : x
  2. Step 2: Convert to fraction form
    606,908.10/910,726.65 = 251,885.10/x
  3. Step 3: Cross multiply
    606,908.10x = 910,726.65 × 251,885.10
  4. Step 4: Simplify right side
    606,908.10x = 229,398,473,307.92
  5. Step 5: Solve for x
    x = 229,398,473,307.92/606,908.10
  6. Step 6: Final answer
    x = 377,978.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.